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Android Programming for Beginners

Android Programming for Beginners

By : John Horton, Mayani
4.1 (47)
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Android Programming for Beginners

Android Programming for Beginners

4.1 (47)
By: John Horton, Mayani

Overview of this book

Android is the most popular OS in the world. There are millions of devices accessing tens of thousands of applications. It is many people's entry point into the world of technology; it is an operating system for everyone. Despite this, the entry-fee to actually make Android applications is usually a computer science degree, or five years’ worth of Java experience. Android Programming for Beginners will be your companion to create Android applications from scratch—whether you’re looking to start your programming career, make an application for work, be reintroduced to mobile development, or are just looking to program for fun. We will introduce you to all the fundamental concepts of programming in an Android context, from the Java basics to working with the Android API. All examples are created from within Android Studio, the official Android development environment that helps supercharge your application development process. After this crash-course, we’ll dive deeper into Android programming and you’ll learn how to create applications with a professional-standard UI through fragments, make location-aware apps with Google Maps integration, and store your user’s data with SQLite. In addition, you’ll see how to make your apps multilingual, capture images from a device’s camera, and work with graphics, sound, and animations too. By the end of this book, you’ll be ready to start building your own custom applications in Android and Java.
Table of Contents (32 chapters)
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31
Index

The lifecycle demonstration app


This quick experiment will help familiarize ourselves with the lifecycle methods our app uses, as well as give us a chance to play around with a bit more Java code:

  1. Start a new project and call it Lifecycle Demonstration. Of course, the code is in the download bundle in the Chapter 6/Lifecycle Demonstration folder should you wish to refer to it or copy and paste it.

  2. Accept the default target devices.

  3. Choose Blank Activity and don't worry about customizing the activity options at all.

  4. Open the MainActivity.java file in the code editor, if it is not opened for you by default, by left-clicking on the MainActivity tab above the editor.

Note

If the previous steps were not detailed enough, check back to any of the previous occasions when we created a new project for further details.

You have created a new project with all the settings on default. We will only need the MainActivity.java file for this demonstration and we will not be building a UI.

In the MainActivity.java...

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